diff --git a/src/validation.cpp b/src/validation.cpp
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -2032,6 +2032,12 @@
     }
 }
 
+static void LogUpgradeActivation(const std::string upgradeName) {
+    LogPrintf("Upgrade activated: '%s'. The next block will abide by the new "
+              "rules.\n",
+              upgradeName);
+}
+
 /** Check warning conditions and do some notifications on new chain tip set. */
 static void UpdateTip(const CChainParams &params, CBlockIndex *pindexNew) {
     // New best block
@@ -2053,6 +2059,33 @@
               GuessVerificationProgress(params.TxData(), pindexNew),
               pcoinsTip->DynamicMemoryUsage() * (1.0 / (1 << 20)),
               pcoinsTip->GetCacheSize());
+
+    // Log upgrade activations
+    const Consensus::Params &consensusParams = params.GetConsensus();
+    if (!IsUAHFenabled(consensusParams, pindexNew->pprev) &&
+        IsUAHFenabled(consensusParams, pindexNew)) {
+        LogUpgradeActivation("UAHF");
+    }
+    if (!IsDAAEnabled(consensusParams, pindexNew->pprev) &&
+        IsDAAEnabled(consensusParams, pindexNew)) {
+        LogUpgradeActivation("DAA (2017)");
+    }
+    if (!IsMagneticAnomalyEnabled(consensusParams, pindexNew->pprev) &&
+        IsMagneticAnomalyEnabled(consensusParams, pindexNew)) {
+        LogUpgradeActivation("Magnetic Anomaly");
+    }
+    if (!IsGravitonEnabled(consensusParams, pindexNew->pprev) &&
+        IsGravitonEnabled(consensusParams, pindexNew)) {
+        LogUpgradeActivation("Graviton");
+    }
+    if (!IsPhononEnabled(consensusParams, pindexNew->pprev) &&
+        IsPhononEnabled(consensusParams, pindexNew)) {
+        LogUpgradeActivation("Phonon");
+    }
+    if (!IsAxionEnabled(consensusParams, pindexNew->pprev) &&
+        IsAxionEnabled(consensusParams, pindexNew)) {
+        LogUpgradeActivation("Axion");
+    }
 }
 
 /**